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Recapitulare formule geometrie 8

Mathematics

8th Grade

Used 89+ times

Recapitulare formule geometrie 8
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17 questions

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1.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Aria triunghiului este egala cu

b⋅h2\frac{b\cdot h}{2}

p⋅(p−a)⋅(p−b)⋅(p−c)\sqrt{p\cdot\left(p-a\right)\cdot\left(p-b\right)\cdot\left(p-c\right)}

l1⋅l2⋅sin⁡∠(l1;l2)l_1\cdot l_2\cdot\sin\angle\left(l_1;l_2\right)

b⋅hb\cdot h

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Aria triunghiului echilateral este

l232\frac{l^2\sqrt{3}}{2}

l234\frac{l^2\sqrt{3}}{4}

l34\frac{l\sqrt{3}}{4}

l32\frac{l\sqrt{3}}{2}

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

sin x este egal cu

c.opc.al\frac{c.op}{c.al}

c.alip\frac{c.al}{ip}

c.opip\frac{c.op}{ip}

c.alc.op\frac{c.al}{c.op}

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

cos x este egal cu

c.opip\frac{c.op}{ip}

c.alc.op\frac{c.al}{c.op}

c.opc.al\frac{c.op}{c.al}

c.alip\frac{c.al}{ip}

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

tg x este egala cu

c.alc.op\frac{c.al}{c.op}

c.opc.al\frac{c.op}{c.al}

c.opip\frac{c.op}{ip}

c.alip\frac{c.al}{ip}

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 tg 300 estetg\ 30^0\ este  

 33\frac{\sqrt{3}}{3}  

 32\frac{\sqrt{3}}{2}  

 3\sqrt{3}  

 22\frac{\sqrt{2}}{2}  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 cos⁡ 600 \cos\ 60^0\   este

 32\frac{\sqrt{3}}{2}  

 33\frac{\sqrt{3}}{3}  

 12\frac{1}{2}  

 22\frac{\sqrt{2}}{2}  

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